syntax = "proto3"; package hashicorp.consul.internal.service; import "google/protobuf/struct.proto"; import "proto/pbcommon/common.proto"; import "proto/pbservice/healthcheck.proto"; // ConnectProxyConfig describes the configuration needed for any proxy managed // or unmanaged. It describes a single logical service's listener and optionally // upstreams and sidecar-related config for a single instance. To describe a // centralized proxy that routed traffic for multiple services, a different one // of these would be needed for each, sharing the same LogicalProxyID. // // mog annotation: // // target=github.com/hashicorp/consul/agent/structs.ConnectProxyConfig // output=service.gen.go // name=Structs message ConnectProxyConfig { // DestinationServiceName is required and is the name of the service to accept // traffic for. string DestinationServiceName = 1; // DestinationServiceID is optional and should only be specified for // "side-car" style proxies where the proxy is in front of just a single // instance of the service. It should be set to the service ID of the instance // being represented which must be registered to the same agent. It's valid to // provide a service ID that does not yet exist to avoid timing issues when // bootstrapping a service with a proxy. string DestinationServiceID = 2; // LocalServiceAddress is the address of the local service instance. It is // optional and should only be specified for "side-car" style proxies. It will // default to 127.0.0.1 if the proxy is a "side-car" (DestinationServiceID is // set) but otherwise will be ignored. string LocalServiceAddress = 3; // LocalServicePort is the port of the local service instance. It is optional // and should only be specified for "side-car" style proxies. It will default // to the registered port for the instance if the proxy is a "side-car" // (DestinationServiceID is set) but otherwise will be ignored. // mog: func-to=int func-from=int32 int32 LocalServicePort = 4; // Config is the arbitrary configuration data provided with the proxy // registration. // mog: func-to=ProtobufTypesStructToMapStringInterface func-from=MapStringInterfaceToProtobufTypesStruct google.protobuf.Struct Config = 5; // Upstreams describes any upstream dependencies the proxy instance should // setup. // mog: func-to=UpstreamsToStructs func-from=NewUpstreamsFromStructs repeated Upstream Upstreams = 6; // MeshGateway defines the mesh gateway configuration for upstreams MeshGatewayConfig MeshGateway = 7; // Expose defines whether checks or paths are exposed through the proxy ExposeConfig Expose = 8; // Mode represents how the proxy's inbound and upstream listeners are dialed. // mog: func-to=structs.ProxyMode func-from=string string Mode = 9; // TransparentProxy defines configuration for when the proxy is in // transparent mode. TransparentProxyConfig TransparentProxy = 10; // LocalServiceSocketPath is the path to the unix domain socket for the local service instance string LocalServiceSocketPath = 11; } // Upstream represents a single upstream dependency for a service or proxy. It // describes the mechanism used to discover instances to communicate with (the // Target) as well as any potential client configuration that may be useful such // as load balancer options, timeouts etc. // // mog annotation: // // target=github.com/hashicorp/consul/agent/structs.Upstream // output=service.gen.go // name=Structs // ignore-fields=IngressHosts message Upstream { // Destination fields are the required ones for determining what this upstream // points to. Depending on DestinationType some other fields below might // further restrict the set of instances allowable. // // DestinationType would be better as an int constant but even with custom // JSON marshallers it causes havoc with all the mapstructure mangling we do // on service definitions in various places. string DestinationType = 1; string DestinationNamespace = 2; string DestinationPartition = 12; string DestinationPeer = 13; string DestinationName = 3; // Datacenter that the service discovery request should be run against. Note // for prepared queries, the actual results might be from a different // datacenter. string Datacenter = 4; // LocalBindAddress is the ip address a side-car proxy should listen on for // traffic destined for this upstream service. Default if empty is 127.0.0.1. string LocalBindAddress = 5; // LocalBindPort is the ip address a side-car proxy should listen on for // traffic destined for this upstream service. Required. // mog: func-to=int func-from=int32 int32 LocalBindPort = 6; // Config is an opaque config that is specific to the proxy process being run. // It can be used to pass arbitrary configuration for this specific upstream // to the proxy. // mog: func-to=ProtobufTypesStructToMapStringInterface func-from=MapStringInterfaceToProtobufTypesStruct google.protobuf.Struct Config = 7; // MeshGateway is the configuration for mesh gateway usage of this upstream MeshGatewayConfig MeshGateway = 8; // CentrallyConfigured indicates whether the upstream was defined in a proxy // instance registration or whether it was generated from a config entry. bool CentrallyConfigured = 9; // LocalBindSocketPath is the socket to create to connect to the upstream service string LocalBindSocketPath = 10; string LocalBindSocketMode = 11; } // ServiceConnect are the shared Connect settings between all service // definitions from the agent to the state store. // mog annotation: // // target=github.com/hashicorp/consul/agent/structs.ServiceConnect // output=service.gen.go // name=Structs message ServiceConnect { // Native is true when this service can natively understand Connect. bool Native = 1; reserved 2; // SidecarService is a nested Service Definition to register at the same time. // It's purely a convenience mechanism to allow specifying a sidecar service // along with the application service definition. It's nested nature allows // all of the fields to be defaulted which can reduce the amount of // boilerplate needed to register a sidecar service separately, but the end // result is identical to just making a second service registration via any // other means. // mog: func-to=ServiceDefinitionPtrToStructs func-from=NewServiceDefinitionPtrFromStructs ServiceDefinition SidecarService = 3; PeeringServiceMeta PeerMeta = 4; } // PeeringServiceMeta is read-only information provided from an exported peer. // // mog annotation: // // target=github.com/hashicorp/consul/agent/structs.PeeringServiceMeta // output=service.gen.go // name=Structs message PeeringServiceMeta { repeated string SNI = 1; repeated string SpiffeID = 2; string Protocol = 3; } // ExposeConfig describes HTTP paths to expose through Envoy outside of Connect. // Users can expose individual paths and/or all HTTP/GRPC paths for checks. // // mog annotation: // // target=github.com/hashicorp/consul/agent/structs.ExposeConfig // output=service.gen.go // name=Structs message ExposeConfig { // Checks defines whether paths associated with Consul checks will be exposed. // This flag triggers exposing all HTTP and GRPC check paths registered for the service. bool Checks = 1; // Paths is the list of paths exposed through the proxy. // mog: func-to=ExposePathSliceToStructs func-from=NewExposePathSliceFromStructs repeated ExposePath Paths = 2; } // mog annotation: // // target=github.com/hashicorp/consul/agent/structs.ExposePath // output=service.gen.go // name=Structs message ExposePath { // ListenerPort defines the port of the proxy's listener for exposed paths. // mog: func-to=int func-from=int32 int32 ListenerPort = 1; // ExposePath is the path to expose through the proxy, ie. "/metrics." string Path = 2; // LocalPathPort is the port that the service is listening on for the given path. // mog: func-to=int func-from=int32 int32 LocalPathPort = 3; // Protocol describes the upstream's service protocol. // Valid values are "http" and "http2", defaults to "http" string Protocol = 4; // ParsedFromCheck is set if this path was parsed from a registered check bool ParsedFromCheck = 5; } // mog annotation: // // target=github.com/hashicorp/consul/agent/structs.MeshGatewayConfig // output=service.gen.go // name=Structs message MeshGatewayConfig { // mog: func-to=structs.MeshGatewayMode func-from=string string Mode = 1; } // mog annotation: // // target=github.com/hashicorp/consul/agent/structs.TransparentProxyConfig // output=service.gen.go // name=Structs message TransparentProxyConfig { // mog: func-to=int func-from=int32 int32 OutboundListenerPort = 1; // DialedDirectly indicates whether transparent proxies can dial this proxy instance directly. // The discovery chain is not considered when dialing a service instance directly. // This setting is useful when addressing stateful services, such as a database cluster with a leader node. bool DialedDirectly = 2; } // ServiceDefinition is used to JSON decode the Service definitions. For // documentation on specific fields see NodeService which is better documented. // // mog annotation: // // target=github.com/hashicorp/consul/agent/structs.ServiceDefinition // output=service.gen.go // name=Structs message ServiceDefinition { // mog: func-to=structs.ServiceKind func-from=string string Kind = 1; string ID = 2; string Name = 3; repeated string Tags = 4; string Address = 5; // mog: func-to=MapStringServiceAddressToStructs func-from=NewMapStringServiceAddressFromStructs map TaggedAddresses = 16; map Meta = 6; // mog: func-to=int func-from=int32 int32 Port = 7; // Path for socket string SocketPath = 18; CheckType Check = 8; // mog: func-to=CheckTypesToStructs func-from=NewCheckTypesFromStructs repeated CheckType Checks = 9; // mog: func-to=WeightsPtrToStructs func-from=NewWeightsPtrFromStructs Weights Weights = 10; string Token = 11; bool EnableTagOverride = 12; // Proxy is the configuration set for Kind = connect-proxy. It is mandatory in // that case and an error to be set for any other kind. This config is part of // a proxy service definition and is distinct from but shares some fields with // the Connect.Proxy which configures a managed proxy as part of the actual // service's definition. This duplication is ugly but seemed better than the // alternative which was to re-use the same struct fields for both cases even // though the semantics are different and the non-shared fields make no sense // in the other case. ProxyConfig may be a more natural name here, but it's // confusing for the UX because one of the fields in ConnectProxyConfig is // also called just "Config" // mog: func-to=ConnectProxyConfigPtrToStructs func-from=NewConnectProxyConfigPtrFromStructs ConnectProxyConfig Proxy = 14; // mog: func-to=EnterpriseMetaToStructs func-from=NewEnterpriseMetaFromStructs common.EnterpriseMeta EnterpriseMeta = 17; // mog: func-to=ServiceConnectPtrToStructs func-from=NewServiceConnectPtrFromStructs ServiceConnect Connect = 15; } // Type to hold an address and port of a service message ServiceAddress { string Address = 1; // mog: func-to=int func-from=int32 int32 Port = 2; } // Weights represent the weight used by DNS for a given status message Weights { // mog: func-to=int func-from=int32 int32 Passing = 1; // mog: func-to=int func-from=int32 int32 Warning = 2; }